#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    ui->tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
    //创建3行
    ui->tableWidget->insertRow(0);
    ui->tableWidget->insertRow(1);
    ui->tableWidget->insertRow(2);
    //创建3列
    ui->tableWidget->insertColumn(0);
    ui->tableWidget->insertColumn(1);
    ui->tableWidget->insertColumn(2);
    //给3列设置列名
    ui->tableWidget->setHorizontalHeaderItem(0,new QTableWidgetItem("学号"));
    ui->tableWidget->setHorizontalHeaderItem(1,new QTableWidgetItem("姓名"));
    ui->tableWidget->setHorizontalHeaderItem(2,new QTableWidgetItem("年龄"));
    //设置初始化数据
    ui->tableWidget->setItem(0,0,new QTableWidgetItem("1001"));
    ui->tableWidget->setItem(0,1,new QTableWidgetItem("张三"));
    ui->tableWidget->setItem(0,2,new QTableWidgetItem("18"));

    ui->tableWidget->setItem(1,0,new QTableWidgetItem("1002"));
    ui->tableWidget->setItem(1,1,new QTableWidgetItem("李四"));
    ui->tableWidget->setItem(1,2,new QTableWidgetItem("18"));

    ui->tableWidget->setItem(2,0,new QTableWidgetItem("1003"));
    ui->tableWidget->setItem(2,1,new QTableWidgetItem("王五"));
    ui->tableWidget->setItem(2,2,new QTableWidgetItem("18"));
}

Widget::~Widget()
{
    delete ui;
}


void Widget::on_pushButton_addCol_clicked()
{
    //获取到列数
    int col=ui->tableWidget->columnCount();
    //插入该列
    ui->tableWidget->insertColumn(col);
    QString name=ui->lineEdit->text();
    ui->tableWidget->setHorizontalHeaderItem(col,new QTableWidgetItem(name));
}

void Widget::on_pushButton_addRow_clicked()
{
    //获取该行
    int row=ui->tableWidget->rowCount();
    ui->tableWidget->insertRow(row);
}

void Widget::on_pushButton_3_clicked() //删除列
{
    int col=ui->tableWidget->currentColumn();
    ui->tableWidget->removeColumn(col);
}

void Widget::on_pushButton_delRow_clicked()
{
    //获取选中的行
    int row=ui->tableWidget->currentRow();
    ui->tableWidget->removeRow(row);
}
